Next up, we have the squeeze test - yes, you read that right! Give your sausage a gentle squeeze, and if it feels firm to the touch, it's likely cooked. If it still feels soft and squishy, it needs a bit more time on the grill. This test works because cooked sausages have a lower moisture content, making them feel more dense and firm.
Another way to check if your sausage is cooked is to use the visual cue of shrinking. As sausages cook, they tend to shrink in size due to the loss of moisture - so if your sausage looks a bit smaller than when you first put it on the grill, it's probably done. Just be sure to compare it to the original size, and not to the size of the sausage next to it - we don't want any sausage envy!